Web Browser Child

Question

I have a mainform with a button that opens a child form which has a browser control and url textbox/button that opens. the main form s opens the child form fine and the child form works great as a browser. the url functions however when I open the child form there is no default page that loads you have to type in a url and button press for it to load the page. Is there a way to set the default page of the form, and if so can the page it open be determined by the button that is pressed in the main form?